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The male infertility crisis is an increase in male infertility since the mid-1970s. [89] The issue attracted media attention after a 2017 meta-analysis found that sperm counts in Western countries had declined by 52.4 percent between 1973 and 2011.
Social commentators have said that the wide-ranging consequences of male infertility necessitate the use of crisis, [13] since widespread involuntary childlessness can be viewed as a crisis. [14] Research analysis has found that amongst a sample of British newspapers in the 1990s, there was a recognizable discourse about a male fertility crisis ...
Total fertility rate in Korea. South Korea has the lowest fertility rate in the world at 0.78. [58] A variety of explanations have been proposed, ranging from investment in education [59] to birth control, abortion, a decline in the marriage rate, divorce, female participation in the labor force, and the 1997 Asian financial crisis. [60]
Infertility rates have increased by 4% since the 1980s, mostly from problems with fecundity due to an increase in age. [89] Fertility problems affect one in seven couples in the UK. Most couples (about 84%) who have regular sexual intercourse (that is, every two to three days) and who do not use contraception get pregnant within a year.
Replacement fertility is the total fertility rate at which women give birth to enough babies to sustain population levels, assuming that mortality rates remain constant and net migration is zero. [8] If replacement level fertility is sustained over a sufficiently long period, each generation will exactly replace itself. [8]
As an alternative to natural sexual intercourse, there exists artificial insemination, where sperm is introduced into the female reproductive system without the insertion of the penis. [2] There are also many methods of assisted reproductive technology , such as in vitro fertilization , where one or more egg cells are retrieved from a woman's ...
The Human Fertilisation and Embryology Authority (HFEA) is an executive non-departmental public body of the Department of Health and Social Care in the United Kingdom. It is a statutory body that regulates and inspects all clinics in the United Kingdom providing in vitro fertilisation (IVF), artificial insemination and the storage of human eggs, sperm or embryos.
Using this method, some men with Klinefelter's syndrome, and so would be otherwise infertile, have been able to achieve pregnancy. [ 23 ] [ 28 ] Thus, IVF has become the ultimate solution for most fertility problems, moving from tubal disease to male factor, idiopathic subfertility, endometriosis, advanced maternal age , and anovulation not ...